Na-Yeong Kim, Daewoo Lee, Jaegon Kim, Yeon-mi Yang
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引用次数: 0
摘要
本研究的目的是利用锥形束计算机断层扫描(CBCT)研究上颌缓慢扩张(SME)对牙槽牙、骨骼、上呼吸道和上颌窦的影响。研究对象为全北大学口腔医院儿童齿科采用带状舌牙进行上颌扩张治疗的23例正畸患者,平均年龄8.93±1.61岁。根据上颌扩张速度分为两组:SME组(12例,平均年龄8.92±1.45岁)和RME组(11例,平均年龄8.94±1.84岁)。分别在治疗前(T0)和治疗后(T1)进行CBCT扫描,并使用InVivo5软件(Anatomage, San Jose, CA, USA)进行分析。描述性统计显示两组在年龄、性别或骨骼成熟度方面没有显著差异。两组在牙槽牙和骨骼水平上颌宽度均有显著增加。上气道容积在SME组和RME组分别显著增加38.59%和28.72%。然而,SME组和RME组在所有测量中没有显著差异。本研究提示了SME在生长患者中的疗效。SME不仅有效地增加牙槽骨和骨骼测量,而且增加气道容积。因此,儿科牙医应考虑到生长中的儿童牙周组织的生理方面和不适,选择适当的扩张方法。
Three Dimensional Skeletal, Dentoalveolar and Airway Space Changes after Slow Maxillary Expansion in Children
The aim of this study was to investigate the effects of slow maxillary expansion (SME) on the dentoalveolar, skeletal, upper airway, and maxillary sinus using cone-beam computed tomography (CBCT). Twenty-three orthodontic patients (mean age 8.93 ± 1.61 years) who were treated with maxillary expansion using banded hyrax in the Department of Pediatric Dentistry at Jeonbuk National University Dental Hospital were included. According to the expansion speed applied, they were divided into two groups: SME (12 subjects, mean age 8.92 ± 1.45 years) and rapid maxillary expansion (RME, 11 subjects, mean age 8.94 ± 1.84 years). CBCT were obtained before (T0) and after (T1) the treatment and were analyzed with InVivo5 software (Anatomage, San Jose, CA, USA). Descriptive statistics showed no significant differences between the two groups in age, sex, or skeletal maturity. There were significant increases in maxillary width at the dentoalveolar and skeletal levels for both groups. Upper airway volume revealed a significant increase of 38.59% in the SME group and 28.72% in the RME group. However, there was no significant difference between SME group and RME group in all measurements. This study suggested the efficacy of SME in growing patients. SME was effective in increasing not only dentoalveolar and skeletal measurements but also airway volume. Therefore, pediatric dentists should select an appropriate expansion method considering the physiological aspects of periodontal tissues and discomfort in growing children.